Telescopic sight mounting means

ABSTRACT

A telescopic sight mount for firearms comprised of a base member adapted to be secured to the firearm, a support member pivotally secured thereto and adapted to support a telescopic sight. A rotatable member for changing the inclination of the support member relative to the base member to adjust the scope sight for various distances.

United States Patent 1 Troutman 51 May 13,1975

[ TELESCOPIC SIGHT MOUNTING MEANS [76] Inventor: James D. Troutman, Rt. No. 2,

Keyser, W. Va. 26726 [22] Filed: July 23, 1973 [21] Appl. N0.: 381,591

[52] US. Cl 33/260; 33/245 [51] Int. Cl. F4lg l/38 [58'] Field of Search 33/247, 248, 254, 255,

33/256, 257, 259, 260, 245, 249; 74/568 R, 74/568 M, 568 T FOREIGN PATENTS OR APPLICATIONS 304,284 l/l933 ltaly 33/247 1,253,435 11/1971 United Kingdom.... 33/248 972,621 10/1964 United Kingdom.... 33/248 1,080,321 12/1954 France 33/254 1,372,556 8/1964 France 74/568 R Primary ExaminerRichard E. Aegerter Assistant Exa'minerCharles E. Phillips Attorney, Agent, or FirmGardiner, Sixbey, Bradford & Carlson [57] ABSTRACT A telescopic sight mount for firearms comprised of a base member adapted to be secured to the firearm, a support member pivotally secured thereto and adapted to support a telescopic sight. A rotatable member for changing the inclination of the support member relative to the base member to adjust the scope sight for various distances.

3 Claims, 4 Drawing Figures TELESCOPIC SIGHT MOUNTING MEANS This invention relates to mounting means for telescopic gun sights and more particularly to mounting means for telescopic gun sights which may be adjusted to various ranges almost instantaneously.

Many mounts for telescopic gun sights are available wherein the sight may beadjusted for a desired range by various means which gradually raise or lower the sight through a plurality of positions for various ranges.

When a person is hunting in the fields and spots his prey, he usually does not have much time to get off a shot or two. If the prey is approximately 500 yards away and the hunter has his telescopic sight set for a range of 200 yards, the hunter must reset the sight to the proper range if he wishes to shoot accurately. The quicker such an adjustment can be made the more time the hunter has to get off a shot or two.

It is therefore very desirable to provide a mount for a telescopic sight which would enable the hunter to very quickly adjust the sight to the desired range. One such means is disclosed in a US. Pat. to Foster No. 2,493,865.

The present invention provides mounting means for telescopic sights which has many advantages ever known mounting means such as that shown by Foster.

The object of this invention is to provide a mounting means for telescopic sights which enables the hunter to immediately adjust the sight from one range to another and secure the telescopic sight in the desired position.

This object will become readily apparent from the following description and the accompanying drawing in which:

FIG. 1 is an elevational view of the mounting means secured on a firearm;

FIG. 2 is a perspective view of the mounting means with one member pivoted away from the other to reveal the inner portions of both members;

FIG. 3 is a side sectional view of the mounting means in an operative position with a mounting block shown in phantom lines; and

FIG. 4 is a sectional view taken on line 44 of FIG.

The mounting means comprises a base member 12 which is secured to the firearm by means of a conventional mounting block B shown in phantom lines in FIGS. 3 and 4. One such block is manufactured and sold by the Weaver Gun Sight Co. and is secured to the firearm by means of screws.

The base member 12 is provided with a channel 14 on the bottom surface thereof which slidably receives the mounting block B. Once the mounting means 10 has been slid over the mounting block with the mounting block B nested in the channel 14, a set screw 16, which is threadably mounted in a bore 18 through the base member 12, is screwed down to bear tightly against the surface of the mounting block.

Additional locking means are provided to secure the mounting means 10 on the mounting block B. A pin 20 is slidably supported in the base member I2 and extends laterally through the channel 14. The pin 20 is removed when the mounting means is being slid onto the mounting block B. Once the mounting means is in position and the set screw 16 has been tightened down, the pin 20 is inserted into the base member I2 and is positioned so that it bears against the end of the mounting block B and prevents movement relative thereto.

The telescopic sight is mounted on a support member 22 by conventional mounting rings. The support member 22 is provided with slots 24 and 26 which receive the mounting rings. The mounting rings are provided with screws to securely fasten the telescopic sight to the support member 22. Such mounting rings are conventional and also are manufactured and sold by Weaver Gun Sight Co.

The support member 22 is provided at one end thereof with a boss 28 having a bore 30 extending therethrough. The support member 22 is pivotally secured to the base member 12 by means of a pin 32 extending through the bore 30 and supported in upright ears 34 and 36 on the base member 12. The pin 32 may be secured to the ears 34 and 36 by any suitable means.

At the other end of the support member 22, there is provided a pair of legs 38 and 40 which, when the support member 22 is in the position shown in FIG. 3, straddle a screw 42.

The screw 42 extends between upright ears 44 and 46 and is provided with a thumb wheel 48. The purpose of the screw 42 is to lock the support member 22 in the desired position. When the screw is rotated clockwise, as viewed in FIG. 2, it draws the ears 44 and 46 together thus clamping the support member therebetween. The end surfaces of the legs 38 and 40 which abut the inner surfaces of the ears 44 and 46 present sufficient area so that very slight bending of the ears towards each other frictionally locks the support member 22 against movement.

The range setting means comprises a rotary hub 50 mounted on a shaft 52 which is journaled in tabs 54 and 56. The shaft 52 is prevented from longitudinal movement by a spring key 58 on its one end and a thumb wheel 60 rigidly secured to the other end.

The hub 50 is provided with a plurality of adjustable earns 62. In the illustrated embodiment four such cams are shown, only one of which is numbered. The earns 62 are threadably engaged in bores in the hub 50 so that the distance that each cam extends outwardly from the hub 50 may be varied.

The outer end of the cam is adapted to engage a cam surface 64 formed in the bottom surface of the support member 22 and maintain the support member at a predetermined inclination relative to the base member.

The thumb wheel 60 is provided with indicia corresponding to the various ranges such as 200, 300, 400 and 500. Each cam 62 is represented by one of the range indicia.

The cams are adjusted for their respective range in the following manner. The thumb wheel 60 is rotated to a position where one of the range indicia is in the position of the 200 yard as illustrated in FIG. 2. In this position the associated cam 62 engages the cam surface 64. The firearm is zeroed in by screwing the cam in or out of the hub 62 as necessary. The thumb wheel is then rotated to the next range and the firearm again is zeroed in for this range. This is repeated for each range setting.

In order to secure the range setting means in the desired position, latch means 66 are provided on the thumb wheel 60. The latch means 66 comprises a spring urged ball which seats in one of a plurality of detents 68 formed in the adjacent wall of the base member 12. A detent is provided for each cam 62.

Once the sight has been zeroed in for each setting the mounting means is ready for use. The sight may be set for any one of the predetermined ranges by merely loosening the lock wheel 48, rotating the range setting wheel 60 to the desired range and then turning the lock wheel 48 to firmly hold the support member in position. Such manipulation requires only a few seconds.

From the foregoing description it is readily apparent that the invention provides mounting means for telescopic sights wherein the sight may be rapidly and accurately set for any one of a predetermined range.

I claim:

1. A mounting for telescopic sights for use with a firearm comprising an elongated base member having top and bottom surfaces, a channel extending longitudinally in the bottom surface thereof adapted to receive a conventional mounting block of a firearm, a first pair of ears extending vertically from the top surface of said base member at its one end, a second pair of ears extending vertically from the top surface of said base member at its other end, a support member adapted to receive a telescopic sight, said support being pivotally mounted on a pin extending between said first pair of ears, a pair of vertical tabs extending from the upper surface of said base member, rotatable cam means journaled on a pin extending between said vertical tabs, said rotatable cam means comprising a hub, means to rotate said hub, a plurality of cams mounted on said hub and being spaced circumferentially about the surface of the hub, each cam being adjustable to project from said hub a variable distance to engage and to pivot the support member relative to the base member, and a screw extending between said second pair of ears for drawing said ears toward each other to grip the support member when positioned therebetween.

2. A mounting for telescopic sights for use with a firearm as set forth in claim 1 wherein said hub rotating means is provided with indicia to represent a desired range and latch means to secure said hub rotating means in a selected position.

3. A mounting for telescopic sights for use with a firearm as set forth in claim 2 wherein each of said cams is represented by indicia of a certain range and when said hub is rotated said cam means to engage and pivot the support member, the support member is inclined relative to the base member so that a sight supported thereon is adjusted for the certain range. 

1. A mounting for telescopic sights for use with a firearm comprising an elongated base member having top and bottom surfaces, a channel extending longitudinally in the bottom surface thereof adapted to receive a conventional mounting block of a firearm, a first pair of ears extending vertically from the top surface of said base member at its one end, a second pair of ears extending vertically from the top surface of said base member at its other end, a support member adapted to receive a telescopic sight, said support being pivotally mounted on a pin extending between said first pair of ears, a pair of vertical tabs extending from the upper surface of said base member, rotatable cam means journaled on a pin extending between said vertical tabs, said rotatable cam means comprising a hub, means to rotate said hub, a plurality of cams mounted on said hub and being spaced circumferentially about the surface of the hub, each cam being adjustable to project from said hub a variable distance to engage and to pivot the support member relative to the base member, and a screw extending between said second pair of ears for drawing said ears toward each other to grip the support member when positioned therebetween.
 2. A mounting for telescopic sights for use with a firearm as set forth in claim 1 wherein said hub rotating means is provided with indicia to represent a desired range and latch means to secure said hub rotating means in a selected position.
 3. A mounting for telescopic sights for use with a firearm as set forth in claim 2 wherein each of said cams is represented by indicia of a certain range and when said hub is rotated said cam means to engage and pivot the support member, the support member is inclined relative to the base member so that a sight supported thereon is adjusted for the certain range. 